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Lake Mendota is a lake with high levels of nutrient input from agriculture that has the potential to fuel blooms of phytoplankton. In 2009 the invasive spiny water flea Bythotrephes (native to Europe and Asia) was first detected in the lake. In the figure, the food web for Lake Mendota prior to the invasion is on the left, and after the invasion on the right. Bythotrephes is a more effective predator of the herbivorous zooplankton Daphnia than the native planktivorous perch (represented by the large red arrows between Bythotrephes and Daphnia), and perch consume Bythotrephes at much lower rates than they do Daphnia (represented by the small red arrows between perch and Bythotrephes). See attached image See second attached image for question

Lake Mendota is a lake with high levels of nutrient input from agriculture that has the potential to fuel blooms of phytoplankton. In 2009 the invasive spiny water flea Bythotrephes (native to Europe and Asia) was first detected in the lake. In the figure, the food web for Lake Mendota prior to the invasion is on the left, and after the invasion on the right. Bythotrephes is a more effective predator of the herbivorous zooplankton Daphnia than the native planktivorous perch (represented by the large red arrows between Bythotrephes and Daphnia), and perch consume Bythotrephes at much lower rates than they do Daphnia (represented by the small red arrows between perch and Bythotrephes). See attached image See second attached image for question

Human Anatomy & Physiology (11th Edition)
Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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Lake Mendota is a lake with high levels of nutrient input from agriculture that has the potential to fuel blooms of phytoplankton. In 2009 the invasive spiny water flea Bythotrephes (native to Europe and Asia) was first detected in the lake. In the figure, the food web for Lake Mendota prior to the invasion is on the left, and after the invasion on the right. Bythotrephes is a more effective predator of the herbivorous zooplankton Daphnia than the native planktivorous perch (represented by the large red arrows between Bythotrephes and Daphnia), and perch consume Bythotrephes at much lower rates than they do Daphnia (represented by the small red arrows between perch and Bythotrephes). See attached image

See second attached image for question

pike perch 1988-2008 + + Daphnia ·↑↓ + 11 phytoplankton pike perch 2009-2015 + + Daphnia + ↑↓ ↑↓ + 11 phytoplankton Bythotrephes
Transcribed Image Text:pike perch 1988-2008 + + Daphnia ·↑↓ + 11 phytoplankton pike perch 2009-2015 + + Daphnia + ↑↓ ↑↓ + 11 phytoplankton Bythotrephes
Choose the graph that would show the effect of the invasion of the spiny water flea Bythotrephes on phytoplankton biomass in Lake Mendota from among the choices in the attached figure. A) Phytoplankton Biomass B) Phytoplankton Biomass Pre-invasion Post-invasion Pre-invasion Post-invasion A. Panel (A) Pre-invasion = High; Post-invasion= Low B. Panel (B) Pre-invasion = Low; Post-invasion=High O C. Panel (C) Pre-invasion = Medium; Post-invasion=Medium U Phytoplankton Biomass Pre-invasion Post-invasion
Transcribed Image Text:Choose the graph that would show the effect of the invasion of the spiny water flea Bythotrephes on phytoplankton biomass in Lake Mendota from among the choices in the attached figure. A) Phytoplankton Biomass B) Phytoplankton Biomass Pre-invasion Post-invasion Pre-invasion Post-invasion A. Panel (A) Pre-invasion = High; Post-invasion= Low B. Panel (B) Pre-invasion = Low; Post-invasion=High O C. Panel (C) Pre-invasion = Medium; Post-invasion=Medium U Phytoplankton Biomass Pre-invasion Post-invasion
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